Re: [PATCH] Revert "mm/memory-hotplug: fix lowmem count overflow when offline pages"

[Joonyoung Shim <jy0922.shim@samsung.com>]

On 07/31/2013 08:48 PM, Bartlomiej Zolnierkiewicz wrote:
> On Wednesday, July 31, 2013 01:17:46 PM Bartlomiej Zolnierkiewicz wrote:
>> Hi,
>>
>> On Wednesday, July 31, 2013 05:50:02 PM Joonyoung Shim wrote:
>>> This reverts commit cea27eb2a202959783f81254c48c250ddd80e129.
>> Could you please also include commit descriptions, i.e.
>> commit cea27eb2a202959783f81254c48c250ddd80e129 ("mm/memory-hotplug: fix
>> lowmem count overflow when offline pages")?
>>
>>> Fixed to adjust totalhigh_pages when hot-removing memory by commit
>>> 3dcc0571cd64816309765b7c7e4691a4cadf2ee7, so that commit occurs
>>> duplicated decreasing of totalhigh_pages.
>> Could you please describe it a bit more (because it is non-obvious) how
>> the commit cea27eb effectively does the same totalhigh_pages adjustment
>> that is present in the commit 3dcc057?
> Err, the other way around. How the commit 3dcc057 ("mm: correctly update
> zone->managed_pages") does what cea27eb ("mm/memory-hotplug: fix lowmem
> count overflow when offline pages") did.
>

OK, i updated to patch v2.

Thanks.

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